Thread: 204 Simple Science Experiments ~ {ERG}
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Old 05-16-2008, 03:17 PM
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Default Re: 204 Simple Science Experiments ~ {ERG}

30. Graphite Conductor



Connect a torch bulb with a battery by means of a pair of scissors and a pencil. The bulb lights up. From the long tongue of the battery, the negative pole, the current flows through the metal of the scissors to the
lamp. It makes it glow, and flows through the graphite shaft to the positive pole of the battery. Therefore graphite is a good conductor: so much electricity flows even through a pencil “lead” on paper, that you can hear crackling in earphones.